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Observation of the decay Ξ−b→pK−K

Abstract:

Decays of the Ξ−b and Ω−b baryons to the charmless final states ph−h'−, where h(') denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies √s=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb^−1. The decay Ξ−b→pK−K− is observed with a significance of 8.7 standard deviations, and evidence at the level of 3.4 standard deviations is found for the Ξ−b→pK−π− decay. Results a...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevLett.118.071801

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
Role:
Author
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior More from this funder
Brazilian National Council for Scientific and Technological Development More from this funder
National Natural Science Foundation of China More from this funder
German Federal Ministry for Education and Research More from this funder
German Research Foundation More from this funder
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
118
Issue:
7
Pages:
071801
Publication date:
2017-02-01
Acceptance date:
2017-01-13
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:715223
UUID:
uuid:10e850e6-e2f8-4bcf-9030-a4e971af2095
Local pid:
pubs:715223
Deposit date:
2017-11-30

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